Composition shingle



-- c B. cLow COMPOSITION SHINGLE Filed April 26, 1927 1N ENTOR 05cm? 3. L 0w Patented Oct. 23 19 7 osoAn Bum arrow, or TACOMA, WASHINGTON.

oomrosrrron SHINGLE.

Application filed April 26,1927. Serial No.'186,7 83.

.This invention relates to improvements in roofing,',and I more partlcularly to roofing shingles of the composition type'designed to be laid in diagonal positions,*th at. is, with the corners of the shingles extending in horn zontal and vertical directions with their :low- 1 or portions whichare exposed to the weather bounded by downwardly converging, lateral edges whichoverlap the upper-edge portions 10 of the shingles in the next lowercourseQ It is common practice in the manufacture of such shingles to slit, or notch, the edges of the shingles'in various ways in order to pro vide for interlocking the shingles of one row 18 with those of thenext lowerrow as a means of anchoring them in place and to insure better joints,but as a general rule, when the interlocking features and the joints are sat sfactory, too much time is required to lay and 20 secure the shingles, and when the shingles are constructed for easy and quick laying, the anchoring feature is not satisfactory.

It is the principal object of. the present invention toimprove upon the means and methodvof interlocking the edges of shingles so as to provide for easy and quick laying, while, at the same time, connections are provided that will preserve the relation between the shingles, which .will prevent any curling up of their lower edges and which will insure a roof that is substantially weather and leak proof.

It is also an object of the invention to provide a construction that not only provides for secure attachment of the shingles, but also which presents a neat and attractive design and which is relatively inexpensive.

Specifically stated, the invention resides in the manner of slitting the edges of shin les so as to provide for their being interloc lred easily and quieklyand to present a novel and attractive design.

In accomplishing the various objects of the invention, I have pr ovided the improved dewhich are illustrated in the accompanying drawings, -wherein v Figure 1 is a planview of a.portion of a roof that is covered with shingles made and Figure 2 is a perspective view of a part of the'same, particularly illustrating the interlockingfeatures. .1

Figure 3 is a sectional detail taken on the line 3 3 in Figure 2. j

Referring more in detail to the drawingstails of constructlon, the preferred forms of;

laid in accordance with the present invention,

l designates shingles embodied by. the'pres I ent invention, which are square in outline and formed of any-suitable compositionusuch as asphaltumimpregnated fibrous material or the like. Such shingles are characterized by I a certain degree of fiexiblity which renders it 1 desirable and necessary to provide forsecure-a ly anchoring their lowermost {margins bee, 1B5

neath the edges of the previously laid and fixed shingles so as to. insure close-and weatlu'ar proof joints.

The present. shingles'are laid horizontal .courses, that is, with the corners of:

the shingles extending horizontallyand ver-' tically and with their lowermost corners disposed centrally within the angles formedby the converging edges of adjacent shingles of the next lower-course.

Each shingle is provided at directly opposite points in its side edges and near its lowermost corner, as shown in Figures 1 and 2, with inwardly directed'slits 2 which extend at right angles to the edges. Theinner ends of these slits connect with slits 3 which extend downwardly and parallel with the edges of the shingles and which, in turn, merge into short, outwardly directed slits 4. In the present shingle, which is approximately 20 inches square, the slits 2 start at points approximately 4: inches from the lower corner and extend inwardly one and one-half inches. The slits 3 are each one inch long and extend toward the bottom edge of the shingle and the slits 4 are one-half inch long. Wever, I do not wish to be confined to these'measurementssince they are only mentioned for the purpose of better explanation.

The slits 2, 3 and 4, in the relation specified, define small anchoring tabs 5 which, as presently described, may be offset from the body of the shingle to permit'their being projected beneath the edges of the shingles in a lower course for thepurpose of anchoring the corner of the shingle to the roof..

Each of the shingles is also provided in the lower edges near the upper side corners with short, inwardly directed slits 6 formed at right angles to the .edges, which are provided so as to permit the edges just below the slits to lie fiat against the next lower shingle when the tabs of a superposed row laid diagonally in a horizontal course and they are secured in place by nailing through their upper and opposite side corners. The

shingles of the second course are then placed roof. These shingles of the second course,

after being drawn upwardly as far as will be permitted on account of the nailing through the side corners of the shingles of the first course, are also nailed through their top and side corners. Each of the succeeding courses are laid and secured in like manner.

' With this construction and method of laying the shingles, a large anchor tab is provided at each side of'the lower corner of each shingle and each tab will be securely held beneath the nailed edge of a shingle of the next lower course. The slits 4 and 6 in the shingles permit the material to be ofiset sufficiently that the joints will be closed to avoid any possible leakage.

Having thus described in invention, what I- claim as new therein an desire tosecure by Letters-Patent, is: I

A roofing formed from a plurality of square shingles laid diagonally. in hor zontal, overlapped courses, each of said shingles being provided in the adjacent side edges thereof which bound its lower corner with slits that extend inwardly at right angles to the edges, then turn downwardly parallel with the side edges, then outwardly perpen 'dicular to but terminating within the edges and providing attached anchor tabs, which are projected beneath the side edges of the shingles in a lower coursewhich are received within the slits whereb the tabs are defined.

Signed at Tacoma, ashington this 5th day of-April, 1927.

OSCAR BLAINE cLow. 

